Definitions for ioctl() accesses to PCI config space registers.

Submitted by:	wollman

1 files changed, 36 insertions, 0 deletions

diff --git a/sys/sys/pciio.h b/sys/sys/pciio.h
new file mode 100644
index 0000000..ea0b939
--- /dev/null
+++ b/sys/sys/pciio.h
@@ -0,0 +1,36 @@
+#ifndef _PCI_IOCTL_H
+#define	_PCI_IOCTL_H	1
+
+#include <sys/ioccom.h>
+
+struct pcisel {
+    u_char		pc_bus;		/* bus number */
+    u_char		pc_dev;		/* device on this bus */
+    u_char		pc_func;	/* function on this device */
+};
+
+struct	pci_conf {
+    struct pcisel	pc_sel;		/* bus+slot+function */
+    pcidi_t		pc_devid;	/* device ID */
+    pcidi_t		pc_subid;	/* subvendor ID */
+    u_int32_t		pc_class;	/* device class */
+};
+
+struct	pci_conf_io {
+    size_t		pci_len;	/* length of buffer */
+    struct pci_conf	*pci_buf;	/* buffer */
+};
+
+struct pci_io {
+    struct pcisel	pi_sel;		/* device to operate on */
+    int			pi_reg;		/* configuration register to examine */
+    int			pi_width;	/* width (in bytes) of read or write */
+    u_int32_t		pi_data;	/* data to write or result of read */
+};
+	
+
+#define	PCIOCGETCONF	_IOWR('p', 1, struct pci_conf_io)
+#define	PCIOCREAD	_IOWR('p', 2, struct pci_io)
+#define	PCIOCWRITE	_IOWR('p', 3, struct pci_io)
+
+#endif /* _PCI_IOCTL_H */